Prices going up and down isn't symmetrical behavior in terms of speed. People love increase sale prices as soon as possible and detest lowering them down, many

Prices going up and down isn't symmetrical behavior in terms of speed. People love increase sale prices as soon as possible and detest lowering them down, many can afford to wait if they expect massive additional income within few years. US is more flexible than say Europe in this (and other aspects of society) but I have no doubt this applies there too.